Different Types of Bucket Elevators

Different Types of Bucket Elevators

The bucket elevator is a type of vertical conveying equipment that elevates materials in various forms such as powder, granular, or small blocky materials that are non-abrasive. These materials, including coal, ore, cement, sand, and clay, are loaded into hoppers and transported upwards.

Common Types of Hoppers in Bucket Elevators:

Cylindrical Hopper: Designed with a deep bucket and a 65-degree inclined opening, this hopper is suitable for dry, free-flowing granular materials.

Shallow Hopper: Features a 45-degree inclined opening and a shallow design, ideal for moist and free-flowing granular materials.

Shallow Hoppers in Bucket Elevators:

Pointed Hopper: The sidewalls extend beyond the bottom plate, forming a ledge. During unloading, materials can be discharged along a channel formed by the hopper’s ledge and bottom plate, making it suitable for sticky and heavy block materials.

Introduction to Bucket Elevators:

Types of Bucket Elevators: There are different ways to categorize the bucket elevators.

Based on Loading Characteristics: Digging type, flow-in type.

Based on Unloading Characteristics: Centrifugal, gravity, and hybrid types.

Based on Traction Component Features: Belt type, chain type (link chain, plate chain).

Based on Hopper Style: Shallow bucket, deep bucket, guided-edge bucket.

Based on Installation Method: Vertical or inclined.

Types of Bucket Elevators:

TD Type (Belt Bucket Elevator): Known for its low cost, lightweight, and ability to operate at high speeds with stable performance and low noise. However, it has lower strength, and the attachment point of the hopper on the belt is a weak spot, limiting the height of elevation. Typically, the belt’s material temperature should not exceed 60°C, though wire-reinforced belts can reach up to 80°C and heat-resistant belts up to 120°C.

TH Type (Link Chain Bucket Elevator): This series uses forged link chains for transmission, offering high mechanical strength and capable of transporting materials up to 250°C. The connection between the chain and the hopper is robust, with minimal chain wear, making it suitable for abrasive materials.

NE Type (Plate Chain Bucket Elevator): Unlike the older TB type, the NE type is named for its lifting capacity rather than hopper width. It can transport materials up to 250°C with a sturdy plate chain structure, suitable for elevators with large lifting capacities, although the hinge joints are prone to wear.

TD Type (Reinforced Belt Bucket Elevator): Uses a steel wire belt for stronger transmission capabilities.

Features of Bucket Elevators:

  • Advantages: Large conveying capacity, high elevation, smooth and reliable operation, low energy consumption, long lifespan, and good sealing.
  • Disadvantages: Prone to overloading and clogging, with wear and tear on both the hopper belt and the hoppers themselves.

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